WHM (Web Host Manager) and cPanel are popular tools for managing web hosting environments, allowing administrators to easily handle various aspects of hosting, such as creating and managing websites, email accounts, databases, and more. When it comes to scaling infrastructure for growth with WHM cPanel, several strategies can be employed:

1. Server Hardware Upgrades: As your hosting requirements grow, you may need to upgrade your server hardware to handle increased traffic and resource demands. This could involve adding more powerful CPUs, increasing RAM, or upgrading storage capacity.

2. Load Balancing: Implementing load balancing distributes incoming traffic across multiple servers, ensuring optimal performance and availability. WHM cPanel supports integration with load balancers, allowing you to scale horizontally by adding more servers to your infrastructure.

3. High Availability Configuration: Setting up high availability ensures that your websites and applications remain accessible even in the event of server failures. WHM cPanel offers features such as clustering and failover configurations to achieve high availability.

4. Vertical Scaling: Vertical scaling involves increasing the resources of individual servers to handle increased loads. With WHM cPanel, you can easily upgrade server resources such as CPU, RAM, and storage as needed.

5. Cloud Hosting Integration: Integrating WHM cPanel with cloud hosting providers like AWS, Google Cloud, or Azure allows you to take advantage of scalable infrastructure services. You can dynamically adjust resources based on demand, ensuring optimal performance and cost-efficiency.

6. Automated Provisioning: Leveraging automation tools and scripts, you can automate the provisioning and deployment of new servers and resources. WHM cPanel supports automation through APIs and command-line interfaces, streamlining the process of scaling infrastructure.

7. Monitoring and Optimization: Regularly monitor server performance metrics using tools like cPanel's built-in monitoring features or third-party monitoring solutions. Identify performance bottlenecks and optimize server configurations to ensure efficient resource utilization.

8. Database Optimization: Optimize database performance by fine-tuning configurations, implementing caching mechanisms, and regularly maintaining databases. WHM cPanel provides tools for managing MySQL and PostgreSQL databases, allowing you to optimize database performance.

By implementing these strategies, you can effectively scale your infrastructure to accommodate growth while ensuring optimal performance, availability, and reliability with WHM cPanel.